Question: IV. The EXT3 file system of Linux uses a multiple index structure. If the file i node (inode) contains 15 pointers(or address entries) noted as

IV. The EXT3 file system of Linux uses a multiple index structure. If the file i node (inode) contains 15 pointers(or address entries) noted as addr[0]~addr[14]. Assuming that the block size is 4KB and size of a pointer is 4B,

(1) Please briefly explain the specific meaning of these address entries and the advantages of multi-Level indexed files structure.

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